摘要
采用国产设备及自行设计配套的灌排系统首次在国内进行了金刚石泡沫绳钻试验，达到了２１７．７４ｍ的最大应用孔深；分析了试验中获得的钻进时效、纯钻进时间率两项主要效果指标；探讨了影响压降的几个关系问题；基本明确了煤田泡沫金刚石绳钻风量、气压等关键参数的变化规律和泡沫稳定运行的重要性。
he small diameter foam diamond wire line drilling tests have first been made using the equipments and circulation system made in China. The maximum hole depth is 217. 74 m. The variation laws of main parameters are obtained through the tests by analyzing the drilling rate, the pressure fall and so on. It is of current significance to apply foam nush technique to wire line drilling in coal-field for increasing the drilling rate.
出处
《煤田地质与勘探》
CAS
CSCD
北大核心
1994年第2期55-60,共6页
Coal Geology & Exploration
